Filter-basket.



F. J. WOOD.

FILTER BASKET.

APPLICATION FILED NOV. 8, 1907. 902,038. Patented Oct. 27, 1908.

Val/$53,952-

FLOYD I. WOOD, OF NILES, MICHIGAN.

FILTER-BASKET.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Application filed November 8, 1907. Serial No. 401,299.

To all whom it may concern:

Be it known that I, FLOYD J. W001), a citizen of the United States, residing at Niles, in the county of Berrien and State of Michigan, have invented a certain new and useful Imrovement in Filter-Baskets, of which the ollowing is a specification.

My invention relates to receptacles for con taining filtering material and is especially designed for use in filters such for example as the one shown in my copending application filed October 22, 1906, Serial No. 339,998.

The object of the invention is to provide a semi collapsible receptacle for containing filtering material.

Another object, ancillary to the first, is to provide means whereby the sides of the receptacle will be automatically drawn together to a certain extent when the receptacle is lifted and automatically spread as the receptacle is lowered into position.

The third object is to provide advantageous means for completing the corners of the rece tacle to thereby retain the filtering materia within the receptacle without interfering with the free movement of the sides.

I accomplish my objects by the mechanism illustrated in the accompanying drawings, in which:

Figure 1 is a perspective view of the receptacle with its sides ex anded. Fig. 2 is a diagrammatic sectional elevation showing the operation of the means for expanding and contracting the receptacle.

Similar numerals refer to similar parts throughout the several views.

The receptacle has a bottom 5 and four sides 6, 7, 8, 9. The sides are hinged to the bottom along the edges thereof. Atthe corners Where the sides and ends meet are corner ieces 10 which are preferably hinged at the lbwer edge to the receptacle bottom by means of rings 11 or other suitable device.

In the best construction the corner pieces are narrow at the bottom but increase in width toward the top and have horizontal slots 12 near the top. Although the precise method of providing a sliding connection between the corner pieces and the sides of the receptacle may be greatly varied, a sim le and durable construction is illustrated in ig. 1, where it is shown that the sides are finished at the top with rods 13 which form stifiening borders. These rods are bent outwardly so as to penetrate said slots, the extremities of the rods being riveted over to form heads 14 outside of the slots, thereby retaining the parts in proper relationship. The sides may, consequently, be swung inwardly to a certain extent, thereby rendering the receptacle partially collapsible. The corner pieces 10 com lete the receptacle at the corners so that t 1e contained filtering material may be effectually retained at all different,

positions of the sides.

' It is not essential that corner pieces be employed, for when certain kinds of filtering material are employed, for example, excelsior, or iron filings, the material is to a great extent cohesive and will, by its own fibers be prevented from escaping at the corners even when the latter are open.

The rece tacle is made portable by means of the handle 15 which is preferably an angle bar connected to the sides by the elements 16, 17. These latter are preferably stifi links articulately connected to bar 15 and to the sides of the receptacle. If it is desired that the inward movement of the sides of the receptacle be limited by means of the handle itself cooperating with the element 17,v the latter are made in the form of stiff links pivoted to bar 15 at the point 18 which oint is intermediate of the ends of said inks. Under these circumstances the bar 15 will be so laced that one of its flanges lies horizontal y at the upper edge of the bar. As a result of this arrangement, when the bar is grasped by the operator to lift the receptacle, the inner extremities of the links 17 will strike the horizontal flange of the bar and limit the swing of the longitudinal links about their pivots. This limiting of the swing of the links limits the height to which the bar may be lifted before the receptacle itself will be lifted. This peculiarity of construction may be done away with, however, if desired, for practically the same effect may be gained by properly proportioning and locating the slots 12 in the corner pieces 10. The limiting of the inward movement of the receptacle sides when bar 15 is lifted may be obtained in a third manner, to-wit: the parts may be so pro ortioned that the sides of the receptacle wil contact the braces or frame pieces 19, which are approximately arched shaped and secured to the bottom of the receptacle. Any one of these three methods of limiting the inward or collapsing movements of the sides may be employed, and the other two methods be dispensed with without de parting from the spirit of the invention.

In the preferred form the bar 15, which constitutes a handle whereby the device may be lifted, lowers onto and is supported by the frames 19 when it is not supporting the weight of the receptacle.

The receptacle 0r filter basket may be constructed of various materials, woven wire being the material selected for illustration.

In operation the receptacle is lifted by means of the bar or handle 15. l/Vhile being thus lifted the sides of the receptacle will, of course, be drawn inwardly, thereby reducing the size of the receptacle and facilitating its withdrawal from its location. This is especially desirable where the receptacle is employed in confined passages, as in the filter shown in the copending application above referred to. After the receptacle is lowered in position, the sides will expand, thereby increasing the size of the rece tacle and en abling it to more completely fil the filter passage in which it is designed to be used.

What I claim as new and desire to secure by Letters Patent, is:

1. A receptacle adapted to contain filtering material, said receptacle having a bottom and four sides hinged thereto, a handle, and links connecting the handle with all four sides for operating them simultaneously, said links being com aratively stiff whereby the movement of t e sides may be positively controlled in either direction.

2. A filter basket having a perforate bottom and sides hinged to said bottom, a handle, substantially inflexible links connecting said handle to said sides, and means for limiting the inward swing of said sides.

3. A filter basket having a bottom and a handle, and links connecting said sides to said handle.

4. A filter basket having a bottom and four sides hinged thereto, a frame within the basket attached to and rising from the basket bottom, said frame being adapted to limit the inward swing of at least two of the basket sides, a handle, and links leading from said handle to the different sides of the basket, said handle being adapted to rest upon said frame when not supporting the basket.

5. A filter basket having a bottom and four sides hinged thereto, and corner pieces adapted to complete the corners of the baskeat and permit relative movement of said s1 es. 1

6. A filter basket having a bottom and four sides hinged thereto, means for swinging the sides inwardly and outwardly, and corner pieces connected to said sides and adapted to permit their swinging movement.

7. A filter receptacle adapted to expand and contract andmeans for automatically contracting the same to a limited extent when it is being raised and expanding the same to a limited extent when the same is at rest.

In witness whereof, I have hereunto subscribed my name in the presence of two Witnesses.

FLOYD J. WOOD. Witnesses:

HOWARD M. Cox, C. J. OHRIsToFFEL. 

